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參數(shù)資料
| 型號(hào)： | MAX508BEPP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | 12-Bit Digital-to-Analog Converter |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 12-BIT DAC, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大小： | 608K |
| 代理商： | MAX508BEPP |
Power-Supply Performance
Key performance characteristics of the power supply
include efficiency and output voltage regulation. Figure 1
shows the efficiency vs. output power. The efficiency
reaches 85% at about 25W of output power and stays
relatively flat up to 50W. Even though the efficiency is
very high, heatsinking is required for the power MOSFET
and output diode. The diode will dissipate about 6W with
a 10A output current and the MOSFET can be expected
to dissipate about 3W to 4W at full 50W load. Sufficient
airflow over the power supply is recommended to cool
down the power transformer and output inductor.
Figure 2 shows the output voltage regulation of the
power supply from 0 to 10A of output current. Voltage
measurement was done across the output voltage
sense points +V
O
and -V
O
.
Another interesting performance waveform for power
supplies is the output voltage transient response to a
step change in output current. Figure 3 shows load
transient response when the load is stepped from 10A
to 0.8A.
As can be seen from Figure 3, the initial transient
response time is less than 30μs. This is a side benefit of
using an optocoupler in conjunction with a TL431 shunt
regulator for isolation.
Figure 4 shows the well-behaved startup characteristics
of this power supply, which are characterized by the
monotonic rise of the output voltage as well as the
absence of any overshoots at the end of the rise period.
E
MAX5003-50W Evaluation Kit
_______________________________________________________________________________________
3
0
20
10
50
40
30
60
70
80
90
0
10
20
30
40
50
M
OUTPUT POWER (W)
E
Figure 1. Efficiency vs. Output Power
-0.15
0
-0.05
-0.10
0.05
0.10
0.20
0.15
0.25
M
10
μ
s/div
V
Figure 3. Output Transient Response (I
OUT
: 10A to 0.8A)
4.5
4.8
4.7
4.6
4.9
5.0
5.1
5.2
5.3
5.4
5.5
0
4
2
6
8
10
M
I
OUT
(A)
V
O
(
Figure 2. Output Voltage Regulation vs. Output Current
MAX5003 fig04
1V/div
V
O
2ms/div
Figure 4. Output Voltage Transient At Power-Up
(V
IN
= 48V, I
OUT
= 5A)
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| MAX508BEPP+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX508BEWP | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX508BEWP+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX508BEWP+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX508BEWP-T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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